diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/tty_io.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 06414e43e0b5..96617f9af819 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -2489,6 +2489,9 @@ static int send_break(struct tty_struct *tty, unsigned int duration) if (!retval) { msleep_interruptible(duration); retval = tty->ops->break_ctl(tty, 0); + } else if (retval == -EOPNOTSUPP) { + /* some drivers can tell only dynamically */ + retval = 0; } tty_write_unlock(tty); |